supercoil: meaning, definition, pronunciation and examples
C2 (Very Low Frequency)Highly technical/specialized
Quick answer
What does “supercoil” mean?
The highly twisted and compacted form of a DNA double helix, where it coils upon itself like a twisted rubber band.
Audio
Pronunciation
Definition
Meaning and Definition
The highly twisted and compacted form of a DNA double helix, where it coils upon itself like a twisted rubber band.
A tightly wound or coiled state of a long, flexible structure (like a rope or polymer) that itself coils around a central axis; to cause such a structure to adopt this highly compact, twisted conformation.
Dialectal Variation
British vs American Usage
Differences
No significant spelling or meaning differences. Pronunciation of /r/ may be more pronounced in American English.
Connotations
Identical technical connotations in both varieties.
Frequency
Extremely low frequency in general language, used exclusively in technical fields in both regions.
Grammar
How to Use “supercoil” in a Sentence
DNA supercoils (intransitive verb)The enzyme supercoils the DNA (transitive verb)the supercoil of the DNA (noun with 'of' phrase)Vocabulary
Collocations
Examples
Examples of “supercoil” in a Sentence
verb
British English
- If you remove the histone proteins, the DNA will spontaneously supercoil.
- The enzyme's function is to supercoil the circular plasmid.
American English
- The DNA supercoils under torsional stress.
- Topoisomerase can supercoil or relax the DNA molecule.
adverb
British English
- N/A
American English
- N/A
adjective
British English
- They analysed the supercoil topology of the bacterial chromosome.
- The supercoil density was measured using gel electrophoresis.
American English
- The researcher purified the supercoil DNA form.
- A supercoil plasmid migrates faster on a gel than a relaxed one.
Usage
Meaning in Context
Business
Virtually never used.
Academic
Core term in molecular biology, genetics, and biochemistry research papers and textbooks.
Everyday
Not used.
Technical
Essential term for describing DNA topology, enzyme action (topoisomerases, gyrases), and genetic engineering techniques.
Vocabulary
Synonyms of “supercoil”
Vocabulary
Antonyms of “supercoil”
Watch out
Common Mistakes When Using “supercoil”
- Using 'supercoil' to describe any tight coil (e.g., of hair or wire).
- Misspelling as 'super coil' (should be one word or hyphenated: supercoil/super-coil).
- Incorrect pronunciation: /ˈsjuːpər/ instead of /ˈsuːpər/.
FAQ
Frequently Asked Questions
No, it is a highly specialized scientific term used almost exclusively in molecular biology and related fields.
Yes, in technical contexts. For example, 'DNA gyrase supercoils DNA.'
A coil is a single spiral. A supercoil is a higher-order structure where the coil itself is coiled again, like the coiled cord of a telephone that has been twisted on itself.
Supercoiling compacts very long DNA molecules to fit inside cells and also influences crucial processes like gene expression and DNA replication by affecting how easily the DNA strands can be separated.
The highly twisted and compacted form of a DNA double helix, where it coils upon itself like a twisted rubber band.
Supercoil is usually highly technical/specialized in register.
Supercoil: in British English it is pronounced /ˈsuːpəkɔɪl/, and in American English it is pronounced /ˈsuːpərkɔɪl/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “N/A”
Learning
Memory Aids
Mnemonic
Imagine a SUPER long telephone cord that is not just coiled, but the coil itself is tightly twisted into a SUPER compact bundle - that's a SUPERCOIL.
Conceptual Metaphor
DNA AS A TWISTED ROPE OR RUBBER BAND. Tension in the rope/band causes it to writhe and coil upon itself to relieve stress.
Practice
Quiz
What is the primary effect of a negative supercoil on DNA?